1-Wire digital temperature sensor with ±0.5°C accuracy and up to 12-bit resolution, usable at 3.0–5.0 V. Multiple sensors can share one data pin via unique 64-bit IDs. Includes a required 4.7 kΩ pull-up resistor; needs a 1-Wire library.
Ground lead, DS18B20 TO-92 pin 1. Product page identifies the sold item as DS18B20; package pin order is from the DS18B20 datasheet, source: https://cdn-shop.adafruit.com/datasheets/DS18B20.pdf
1-Wire data lead, DS18B20 TO-92 pin 2. Adafruit product page states the sensor uses one digital pin and needs a 4.7k pullup from DATA to VCC; package pin order source: https://cdn-shop.adafruit.com/datasheets/DS18B20.pdf; usage source: https://www.adafruit.com/product/374
Supply lead, DS18B20 TO-92 pin 3. Adafruit product page states usable with 3.0V to 5.5V power/data; package pin order source: https://cdn-shop.adafruit.com/datasheets/DS18B20.pdf
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| GND | TO-92 pin 1, left lead when viewing flat face with leads downward | ground | Ground lead, DS18B20 TO-92 pin 1. Product page identifies the sold item as DS18B20; package pin order is from the DS18B20 datasheet, source: https://cdn-shop.adafruit.com/datasheets/DS18B20.pdf | 0V |
| DQ / DATA | TO-92 pin 2, centre lead when viewing flat face with leads downward | data | 1-Wire data lead, DS18B20 TO-92 pin 2. Adafruit product page states the sensor uses one digital pin and needs a 4.7k pullup from DATA to VCC; package pin order source: https://cdn-shop.adafruit.com/datasheets/DS18B20.pdf; usage source: https://www.adafruit.com/product/374 | 3.0V to 5.5V power/data range per Adafruit product page |
| VDD | TO-92 pin 3, right lead when viewing flat face with leads downward | power | Supply lead, DS18B20 TO-92 pin 3. Adafruit product page states usable with 3.0V to 5.5V power/data; package pin order source: https://cdn-shop.adafruit.com/datasheets/DS18B20.pdf | 3.0V to 5.5V |
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Verify supply voltage and logic levels before powering up.
Module pins: VDD, GND. Schematik maps them to your board in the app.
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